Steam valve or gauge cock



C. BLU'ST STEAM VALVE 0R GAUGE cocx Dec. 27, 1927.

Filed Dec .19, 1925 Patented Dec. 27, 1927.

i l i 1,654,451"

CHRISTIAN BLUsT, or' sr. ALBAivs,"WEsT VIRGINIA.

STEAM VALVE on GAUGE COCK.

Application filed December 19, 1925. serial No. 76,492.

l This invention relates to certain new and useful improvements in vvalves-or gauge cocks and has for its prin'iary object to provide an improved type of valve structure, more particularly designed for use as a gauge cock for determining the height of water in a locomotive boiler or the like.

Another object of the invention is to'pro` vide a valve structure wherein a sectional valve casing threaded at one end into a boiler Wall contains a valve member in one section i of the valve casing that is disposed between the innerand outer sides of the boiler wall to permit. proper functioning of the valve l should the valve casing become` damaged or broken at any point exteriorly of the boiler Wall.

A further object of the invention is to provide vin a valve structure of the type above set forth, a casing formed of two sec tions that are detachably connected together 'to permit displacement of the outer section with the main valve carried thereby While the inner-section carrying an auxiliary valve remains in the boiler wall with the auxiliary l valve functioning in the absence ofA the removed section of the valve casing.

A further obj ect ofthe invention is to provide a loosely mounted valve at the supporte ed end of the valve casing witha series of terminal and transverse openings in the inv ner end of the valve casing that lies within the boiler to permit the fiow of Water' and steam aroundr the adjacent valve to prevent the deposit of foi-eign substances or corrosion upon the valve seat, the valve being constructed whereby surging of water within the boiler will effect rotation thereof and insure a perfect Vworking vcondition of the valve at all times. l

.Vith the above and othery objects in view vthat ywill become apparent as the nature of the invention is better understoochthe same consists of the novelform, combination and arrangement of .parts hereinafter morefully described, shown in the accompanying 'drawing and claimed. l y

In the drawing, wherein like reference characters designate corresponding parts throughout the several views,

Figure 'l' is a longitudinal sectional view of a steam valve or gauge cock constructed in` accordance with the present invention, the same being illustra-ted as mounted in a wall of a locomotive boiler,

structure, and

trated.

Figure 2 is a cross-sectional view taken on -line 2 2 of Fig.1,

Q Figure 3 is a perspective View of the auxiliary valve at the supported end of the valve Figure 4L is a. side elevational View, partly7 in section of a modified form of main Avalve and valve stem.

In the accompanying drawing, which shows preferred embodiments of the invention, there is illustrated a steam valve or gauge cock embodying a casing formed of two sections 1 and 2 having tapering abuttingy ground faces 3, the sections 1 and. 2 of the` valve casing Vbeing connected together by the union nut 11 havinga flange cooperating with a {iange on the casing section 2 and threaded upon the `casing section y1 asillus- Registering bores 5 and 6 are formed in the casing sections 1 and 2, while a drain spout or nipple? carried by the casing section' 1 has a passage therein cornmunicating with the registering bores 5 and 6.

The section 2 of the valve casing'is provided with a wrenchgrippi'ng face .2 and is` externally threaded fora portion of` its length as at 8 for threaded reception .in the side .wall 9 of a locomotive boiler or the like. The free terminal end of the casing section 2 is annularly reduced as at 10 and externally threaded to receive the side flange 11 of an end cap v12. A valve chamber 13 is formed at the inner endfof the casing'section 2 and has `a'conical valve seat 14 communicating with the bore 6. Afreely mounted valve 15 shown in detail inFg. 3 is loosely disposed in the valve-chamber 13 as shown in Fig. 1 and has a tapering valve head 16 to Vengage tlierconical valve seat 14,7the valve 15 being normally spaced from itsseat by devices presently to be described. As shown more clearly in Figs. 1 and 2, the side flange 11 vof the end cap is'provided with a circular series of radialopenings'l? while a circular series of openings 18 are formed in the outer end wall of thecap. With the valve structure positioned as illustrated in Fig. 1, and with the valve 15 freely vdisposed in 'the chamber 13, steam and watery surging in the boiler will circulate through said chamber by passing through the openings 17 and 18, and said valve having a series of longitudinally extending grooves 19 in the peripheral wall thereof, will be engaged by the passage of steam and Water through the chamber 13 and cause a rotation of said valve to dislodge foreignsubstances from the Walls of the chamber to maintain the same in a clean condition at all times. 1t Willbe noted that the reduced end ol the inner end oi the casing section 2 is disposed entirely Within the body of the boiler and the end lcap 12 thereon With its side flange 11 being of a diameter smaller than the opening in the boiler Wall 9 that receives the valve casing section, vvill permit free passage of the cap through the boiler opening and permit threaded engageinent between the valve casing section on the boiler. lt Will also be noted that the chamber 13, valve 15 and valve seat 1d being positioned inwardly of the outside of the boiler Wall 9, injury to the valve casing sec- `vtion 2 exteriorly ot' the boiler -vvall will not aiect the operation of the valve 15 inc-losing upon its seat, as these parts are remotely poi sitioned from points Where injury thereto mightA result.

The valve casing section 1 being detachably connected to the casing section 2 through the provision of the4 union nut l as previously described, carries an internally and externally threaded sleeve 2O alined with the Wall 5 and into which the spindle 21 of the operatin'ghandle 22 is threaded. A packing nut 23 through which the operating spindle vslidably extends is threaded onto the sleevev2() and the usual packing elements 241 are interposed between the end of the sleeve 20,

the packing nut and spindle. The main valve of the device, as shown mV Fig. 1 embodies a cylindrical body portion v25 provided with a conical valve head 26 with valve stems 27 and 28 projectingin opposite directions therefrom, the valve head 26'being associated with the conical valve seat 29 at the inner end of the bore 5. The

`valve stem 28is received in the soclreted end j of the operating spindle and has a lrerf 31 in theend thereof for purposes presently to appear. rEhe opposite valve stem 27 projecting through thebores 5 and 6 of the casing sections 1 and 2 engages the apex of the conical valve head 16 of the valve 15 when the'main valve 26 is closed as shown in Fig.

1` for unseating the auxiliary valve 15. In the modiiied form ot' main valve as shown in Fig. 119 the valve body 25a'having theftapered head 26a has the stem section 27a thereof removably threaded in the valve -head as at 32.

. When thel valve members 25 and 15 are sin the positions shown inFi 17 the valvel 15 is unseated andy steam pressure or Water 1n theboiler may move into the chamber 13 and bores 6 and' 5 of the casing sections 2 and 1 l as far as the seated valve head 26;

The valve 25 is retained in its closed position` by the adjacent end of the spindle 21 engaging the rear end thereof, and when said spindle neesifirsiy through the bores 6 and 5 to the bore in thel drain 7. The valve 15 being spaced from its seat by contact iviththe adjacent end of the stem 27 and being under pressure Within the boiler, Willmove toward its seat 111 durtherefore, upon continued reverse rotation ot the spindle 21 theA main valve 25 Will beentirely unseatedA and the valvehead 16 will close upon its seatli. With the-valves 15 and 25 so positioned, the union nut d may then be operated to disengage the valve casing sections 1 and 2 to permit removal of the section 1 with the valve 25 carried thereby and when necessary` the packing nut 23 and spindle 21 may be disengaged Jfrom the valve casing 1 and a suitable implement, such as a screvv driverengaged with the slotted end 31 of the valve stem 28 to grind the conical valve head 26 upon its taperingseat 29. The valve head 25 may then be l removedif e the casing section 1 removed With the main valve 25 carried thereby, the auxiliary valve k15 engaging the conical valve seat 1li in the mg unseating movement` of the valve 25.k

casing section 2 closes the interior of the boiler .to the. atmosphere which renders it unnecessary toeXhaust steam from the boiler when working upon the casing section 1 and the valve 25 carried thereby. If desired7 the ltype of valve shown in Fig. 4 may beV employed with .the tapering vvalve head 26 ground upon the seat 29 While the casing sections 1 and 2 remain in coupled condition, it being necessary only to remove the valve 25a and disconnect the stem 27. ln asimilar manner, the casing section 2 may be removed from the boiler vvall 9 and upon removing the end cap 12 a screw driver or like implement engaged inthe slot 15a in the head oiv the valve 15may grind the valve head 16 upon its seat 14:. An official steam engin-een ing test requires that a Wire or similar implement be capable of vfree passage entirely through the valve casing and this operation lmay be effected Without removing. the casing section 2 from the boiler. During -thistest,

steam is exhausted from the boiler, the casing section 1 disengaged Erom'th-e section 2 and aivire passed through the bore 6 of the casing section 2 will extend around theva-lve 15 for passing throughany one of' the vend openings 18 in the cap 12.

From the above detail description of the device. 'it is believed that the kconstruct-ion and operation thereof Will at once be apparu. ent, and While there is herein shown and described the preferred embodiments ot the present inventioinit is, nevertheless, to be understood that minor changes may be 1n ade desired and the ground face connections be` 90 therein Without departing from the spirit and scope of the invention as claimed.

What is claimed is c 1. In a. valve structure, a sectional casing,

5 means for detachably connecting the sections tog-ether, a valve carried by each section, the outer one of said valves comprising an enlarged head and a reduced stein,k saidhead closely fitting the bore of the ontervone oi" said sections, a threaded valve operating spindle having a s'ocketed end receivingthe valve stem With the end of the spindle engaging th-e valve head to move the same to- Ward its seat, the outer end o'l the valve spindle having,` a ker positioned outwardly of the threaded portion oi? the stem to permit grinding of the valve directly on its seat.

2. In a valve structure, the combination With a boiler Wall of a sectional valve casing set in the Wall, means for detachably connecting the sections together7 a valve carried by each section, the outer one of said valves comprising an enlarged head and reduced stem, said head closely fitting the bore of the outer one yof said sections, vsaid valve and its seat beingl positioned intermediate the inner and outer sides of the boiler Wall when the device is in use, a threaded valve operating spindle having a socleted end receiving the valve stem with the end of the spindle engaging the valv-ehead to move the same toward its seat7 and the outer end of the valve spindle having a kerf outwardly of the threaded portion of the stem to permit grinding of the valve directly on itsseat When the spindle is removed.

In testimony whereof I affix my signature.

CHRISTIAN BLUST. 

